marphy {pastecs} | R Documentation

## Physico-chemical records at the same stations as for marbio

### Description

The `marphy` data frame has 68 rows (stations) and 4 columns. They are seawater measurements at a deep of 3 to 7 m at the same 68 stations as `marbio`.

### Usage

    data(marphy)

### Format

This data frame contains the following columns:

Temperature
  Seawater temperature in °C
Salinity
  Salinity in g/kg
Fluorescence
  Fluorescence of chlorophyll a
Density
  Excess of volumic mass of the seawater in g/l

### Details

This dataset corresponds to a single transect sampled across the Ligurian Sea front in the Mediterranean Sea, between Nice (France) and Calvi (Corsica). The transect extends from the Cap Ferrat (close to Nice) to about 65 km offshore in the direction of Calvi (along a bearing of 123°). 68 regularly spaced measurements where recorded. They correspond to the stations where zooplankton was collected in the `marbio` dataset. Water masses in the transect across the front where identified as:

Stations 1 to 17
  Peripheral zone
Stations 17 to 25
  D1 (divergence) zone
Stations 25 to 30
  C (convergence) zone
Stations 30 to 41
  Frontal zone
Stations 41 to 46
  D2 (divergence) zone
Stations 46 to 68
  Central zone

### Source

Boucher, J., F. Ibanez & L. Prieur (1987) Daily and seasonal variations in the spatial distribution of zooplankton populations in relation to the physical structure in the Ligurian Sea Front. Journal of Marine Research, 45:133-173.

### References

Fromentin, J.-M., F. Ibanez & P. Legendre (1993) A phytosociological method for interpreting plankton data. Marine Ecology Progress Series, 93:285-306.

### See Also

`marbio`

[Package pastecs version 1.3-2 Index]